In: Physics
A charge of 2.20 µC is uniformly distributed on a ring of radius 9.0 cm. Find the electric field strength on the axis at the following locations. (be careful calculating c and d the last post was wrong. please include e.)
(a) 1.2 cm from the center of the ring
N/C
(b) 3.9 cm from the center of the ring
N/C
(c) 4.0 m from the center of the ring
N/C
(d) Find the field strength at 4.0 m using the approximation that
the ring is a point charge at the origin.
N/C
(e) Compare your results for parts (c) and (d) by finding the ratio
of the approximation to the exact result.
(f) Is your approximation result a good one? Explain your answer.
(Do this on paper. Your instructor may ask you to turn in your
work.)